[Bug c++/97677] New: std::array and std::initializer_list gives wrong results

[peter_foelsche at mentor dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97677

            Bug ID: 97677
           Summary: std::array and std::initializer_list gives wrong
                    results
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: peter_foelsche at mentor dot com
  Target Milestone: ---

Created attachment 49487
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49487&action=edit
ConsoleApplication2.cpp

g++ 5.3.0 gives wrong results:

orw-ams-ms7 /scratch/pfoelsch : g++ ConsoleApplication2.cpp -std=c++11
orw-ams-ms7 /scratch/pfoelsch : g++ --version
g++ (GCC) 5.3.0
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

orw-ams-ms7 /scratch/pfoelsch : ./a.out
t2[0]=0.761594 t2[1]=4.19974
t3[0]=-0.661594 t3[1]=-4.19974 t3[2]=1
t4[0]=0 t4[1]=0 t4[2]=1
orw-ams-ms7 /scratch/pfoelsch :



g++ (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
gives correct results:

pfoelsch@txa-pfoelsch-lt:/mnt/c/MGC_NOSCAN/ConsoleApplication2$ g++
ConsoleApplication2.cpp -std=c++11
pfoelsch@txa-pfoelsch-lt:/mnt/c/MGC_NOSCAN/ConsoleApplication2$ g++ --version
g++ (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

pfoelsch@txa-pfoelsch-lt:/mnt/c/MGC_NOSCAN/ConsoleApplication2$ ./a.out
t2[0]=0.761594 t2[1]=4.19974
t3[0]=-0.661594 t3[1]=-4.19974 t3[2]=1
t4[0]=-0.661594 t4[1]=-4.19974 t4[2]=1